National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

55°F

13°C

Humidity 87%
Wind Speed W 12 mph
Barometer 29.91 in (1012.5 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 15 Feb 1:56 am CST
Extended Forecast for

Lockhart TX

  • Overnight

    Overnight: Clear, with a low around 55. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 74. North wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. North wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, then gradually becoming sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 78 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. South southeast wind around 5 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84. West southwest wind around 5 mph becoming south in the afternoon.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61. South southeast wind 5 to 10 mph.

    Low: 61 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 55. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 74. North wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 46. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Partly sunny, then gradually becoming sunny, with a high near 78. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 51. South southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 83. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 58. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 84. West southwest wind around 5 mph becoming south in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 61. South southeast wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 59.
Friday
Partly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
1:44 am CST Feb 15, 2026
Forecast Valid:
2am CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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